-------------------------------------------------
-- Toggle System tray
-------------------------------------------------

local awful = require('awful')
local wibox = require('wibox')
local gears = require('gears')

local dpi = require('beautiful').xresources.apply_dpi

local clickable_container = require('widget.clickable-container')

local config_dir = gears.filesystem.get_configuration_dir()
local widget_icon_dir = config_dir .. 'widget/tray-toggler/icons/'

local widget = wibox.widget {
	{
		id = 'icon',
		image = widget_icon_dir .. 'right-arrow' .. '.svg',
		widget = wibox.widget.imagebox,
		resize = true
	},
	layout = wibox.layout.align.horizontal
}

local widget_button = wibox.widget {
	{
		widget,
		margins = dpi(7),
		widget = wibox.container.margin
	},
	widget = clickable_container
}

widget_button:buttons(
	gears.table.join(
		awful.button(
			{},
			1,
			nil,
			function()
				awesome.emit_signal("widget::systray:toggle")
			end
		)
	)
)


-- Listen to signal
awesome.connect_signal("widget::systray:toggle", function()

	if screen.primary.systray then

		if screen.primary.systray.visible ~= true then

			widget.icon:set_image(gears.surface.load_uncached(widget_icon_dir .. 'left-arrow' .. '.svg'))
		else

			widget.icon:set_image(gears.surface.load_uncached(widget_icon_dir .. 'right-arrow' .. '.svg'))
		end

		screen.primary.systray.visible = not screen.primary.systray.visible
	end

end)

-- Update icon on start-up
if screen.primary.systray then
	
	if screen.primary.systray.visible then
		
		widget.icon:set_image(widget_icon_dir .. 'right-arrow' .. '.svg')
		
	end
	
end

-- Show only the tray button in the primary screen
return awful.widget.only_on_screen(widget_button, 'primary')

